[Bug fortran/66089] elemental dependency mishandling when derived types are involved

[mikael at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66089

--- Comment #1 from Mikael Morin <mikael at gcc dot gnu.org> ---
Draft patch:

Index: trans-array.c
===================================================================
--- trans-array.c       (révision 222968)
+++ trans-array.c       (copie de travail)
@@ -2449,13 +2449,6 @@ gfc_scalar_elemental_arg_saved_as_reference (gfc_s
       && ss_info->expr->ts.type == BT_CLASS)
     return true;

-  /* If the expression is a data reference of aggregate type,
-     avoid a copy by saving a reference to the content.  */
-  if (ss_info->expr->expr_type == EXPR_VARIABLE
-      && (ss_info->expr->ts.type == BT_DERIVED
-         || ss_info->expr->ts.type == BT_CLASS))
-    return true;
-
   /* Otherwise the expression is evaluated to a temporary variable before the
      scalarization loop.  */
   return false;